Files
kata-containers/cli/state.go
Graham whaley e757a592c1 SPDX: update cli and arch files to use SPDX
Many cli and arch files were using the 'older style' fairly full
Apache license text. The project standard is the shorter SPDX style.
Convert them over.

Fixes: #225

Signed-off-by: Graham whaley <graham.whaley@intel.com>
2018-04-17 17:30:44 +01:00

56 lines
1.2 KiB
Go

// Copyright (c) 2014,2015,2016 Docker, Inc.
// Copyright (c) 2017 Intel Corporation
//
// SPDX-License-Identifier: Apache-2.0
//
package main
import (
"encoding/json"
"fmt"
"os"
"github.com/kata-containers/runtime/virtcontainers/pkg/oci"
"github.com/urfave/cli"
)
var stateCLICommand = cli.Command{
Name: "state",
Usage: "output the state of a container",
ArgsUsage: `<container-id>
<container-id> is your name for the instance of the container`,
Description: `The state command outputs current state information for the
instance of a container.`,
Action: func(context *cli.Context) error {
args := context.Args()
if len(args) != 1 {
return fmt.Errorf("Expecting only one container ID, got %d: %v", len(args), []string(args))
}
return state(args.First())
},
}
func state(containerID string) error {
// Checks the MUST and MUST NOT from OCI runtime specification
status, _, err := getExistingContainerInfo(containerID)
if err != nil {
return err
}
// Convert the status to the expected State structure
state := oci.StatusToOCIState(status)
stateJSON, err := json.MarshalIndent(state, "", " ")
if err != nil {
return err
}
// Print stateJSON to stdout
fmt.Fprintf(os.Stdout, "%s", stateJSON)
return nil
}